Mobile filter unit



FIG. 1 is a perspective view showing a top, front and right side view of a mobile filter unit, showing our new design.

FIG. 2 is a perspective view showing a top, front, and left side view.

FIG. 3 is a perspective view showing a bottom, front, and left side view.

FIG. 4 is a mirror image of a rear perspective view showing a top, rear, and right side view.

FIG. 5 is a left side view.

FIG. 6 is a right side view.

FIG. 7 is a top view.

FIG. 8 is a front view; and,

FIG. 9 is a mirror image of a rear view. 

The ornamental design for a mobile filter unit, as shown and described. 